wanna share with you guys, Leatherique-USA products now available in Malaysia. I used both their Rejuvenator Oil and Prestine Clean before; it really worked great.

i did a test on my friend's 2000 honda accord, the leather is dark blue and never maintain with anything before, only wiped with damp cloth whenever he send to car wash.
I attached a photo here (smaller pic due to limited file size allowed), the Left side is treated with Leatherique and Right side is without any treatment. it clearly shows that the treated side is cleaner compare to the Right side where those dirts, oils still on top of the leather itself.
We notice the leather is softer on the treated side.

Leather is breathable, even finished leather on our cars are breathable too.
I afraid the silicone based products you use will cover the ability of breathing.

After sometimes using silicone based leather products, they will created a layer of silicone on top of the dye. This layer is hard and trapped of dirts in it. the owner is sitting on top of the silicone layer instead of the leather itself.

One of the leather manufacturing process called Fat-Liquoring, in this process manufacturer put back those collagens, proteins, fats, etc back into the leather's fiber to restore softness and durability. Once the fiber layer dry out, the leather will start harden and no longer support the dye on top of it. Then you will see cracking appear.

I think, most important is to keep the fiber nourished all the time and not cover it.
Just imagine our skin cover by plastic.

Yes TwinHope. I agree with you that there are MANY leather cleaner products that are not appropriate for the seats. I have used them myself few years ago.

Not to worry because the Leather Cleaner i'm selling now is totally different. You dont feel any silicone on the surface of the leather skin. Its something like nourishment for the leather skin. It is enviromental friendly and children safe. Thus, the higher price. =)

If there are any buyers who would like to try it out and find that the facts i say are not true. I accept a full refund =) Happy Driving.